Master reset, or total reset is required to "clean" out the phone.
It's available in the settings menu.
If it asks for master password, it's usually "0000" unless you have changed it..
If you want to unlock your Sony Ericsson W610 mobile phone from the network lock,you can get network unlock code from Theunlockarena.com at reasonable price.Here they ask you to specify the country name,current network provider and IMEI number of your mobile phone.
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Well there is no way you can format a Sony Ericsson w200i, But you can format a wii.
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